Browse Items (1 total) Description is exactly "Photographs and memorabilia from Alvin Gallagher (Sr. Design & Mechanical Engineer). Includes Mark I, detector, spectrometer, and SPEAR photos." Browse All Search Items Sort by: Title Creator Date Added 2021-001 Gallagher Photographs and Realia Photographs and memorabilia from Alvin Gallagher (Sr. Design & Mechanical Engineer). Includes Mark I, detector, spectrometer, and SPEAR photos. Featured Item SLAC003 Wolfgang Kurt Hermann Panofsky Papers, 1932-2008 The bulk of the collection consists of extensive administrative and professional correspondence and memoranda, subject files, minutes and reports, and…